Bronchitis is inflammation of the breathing tubes. These are the airways called bronchi. This inflammation causes too much mucus production and other changes. Although there are several different types of bronchitis, the most common are acute and chronic. Chronic bronchitis is long-term inflammation of the bronchi. It is common among smokers. People with chronic bronchitis tend to get lung infections more easily. They also have episodes of acute bronchitis during which symptoms are worse....more

Emphysema is a chronic lung condition in which the air sacs (alveoli) may be destroyed, narrowed, collapsed, stretched, or overinflated. Overinflation of the air sacs is a result of breakdown of the walls of the alveoli. It causes a decrease in respiratory function and breathlessness. Damage to the air sacs is irreversible and results in permanent "holes" in the tissues of the lower lungs....more

Pulse oximetry is a test used to measure the oxygen level (oxygen saturation) of the blood. It is an easy, painless measure of how well oxygen is being sent to parts of your body furthest from your heart, such as the arms and legs....more

A chest X-ray is an imaging test that uses X-rays to look at the structures and organs in your chest. It can help your health care provider see how well your lungs and heart are working. Certain heart problems can cause changes in your lungs. Certain diseases can cause changes in the structure of the heart or lungs....more

CT scan is a type of imaging test. It uses X-rays and computer technology to make images or slices of the body. A CT scan can make detailed pictures of any part of the body, including the bones, muscles, fat, organs, and blood vessels. They are more detailed than regular X-rays....more

Some medical problems can make it hard for you to breathe. In these cases, you might benefit from bilevel positive airway pressure. It is commonly known as “BiPap” or “BPap.” It is a type of ventilator—a device that helps with breathing....more

Pneumonia is an infection of one or both of the lungs caused by bacteria, viruses, fungi, or chemical irritants. It is a serious infection or inflammation in which the air sacs fill with pus and other liquid....more

See your healthcare provider as early as possible before you leave on your trip. Discuss any risks that may be involved and plan for immunizations, medicine, and medical devices you may need while you're away....more

Don't assume you're safe just because you're inside. The air within homes and other buildings can be more seriously polluted than the outdoor air in even the largest and most industrialized cities....more

An MDI is the most commonly used inhaler in treating lung diseases such as asthma and COPD. Unfortunately, many people who need an inhaler do not use it correctly, so they don't receive the full benefit of the medication. Watch this video to learn the best way to use your inhaler....more

A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor what's going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your "personal best," and how to set your peak flow zones....more